biastophilia: a paraphilia of the sacrificial/expiatory type in which sexuoerotic arousal and facilitation and attainment of orgasm are responsive to, and dependent upon the surprise attack and continued violent assault of a nonconsenting, terrified, and struggling stranger [from Greek, biastes, rape or forced violation + -philia]. Acquiescence on the part of the partner induces a fresh round of threat and violence from the biastophile. Biastophilia may be homosexual as well as heterosexual, but is predominantly the latter, whether the biastophile is male or female. There is no term for the reciprocal paraphilic condition, namely stage-managing one's own brutal rape by a stranger, which probably exists only in attenuated form and rarely gets transmuted from fantasy into actuality. Synonym, raptophilia.[Biastophilia may overlap into the predatory/marauding types of paraphilia.]